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Tokinori Kozawa

dblp:24/4886 · DBLP profile ↗
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15ranked-venue papers
4as first author
0since 2021 · last 2003
—ORCID · none

Domains — the database's venue-derived domains; a paper can count in several

Systems, architecture and hardware · 15 · 4 first-author

Expertise — from the expertise taxonomy: the topics of the expert's papers under the CCF categories. A weight counts papers with recency: 1 for a paper about the topic, 0.3 when the topic is its context, halved every five years.

Computer architecture, parallel and distributed computing, and storage systems
12 papers
Electronic design automation · 92% Integrated circuit design · 4% Processor architecture and microarchitecture · 3%
Theoretical computer science
1 paper
Computational geometry · 67% Graph algorithms and graph theory · 33%

Topics — the 17 heaviest of 19, each with the papers that count most for it

TopicWeightPapersLastEvidence papers
Electronic design automation
physical design
0.061988
Automatic Layout Procedures for Serial Routing Devices · DAC 1988
Efficient placement algorithms optimizing delay for high-speed ECL masterslice LSIs · DAC 1986
A routing procedure for mixed array of custom macros and standard cells · DAC 1985
Electronic design automation
hardware verification and test
0.031987
RFSIM: Reduced Fault Simulator · IEEE Trans. Comput. Aided Des. Integr. Circuits Syst. 1987
MACH : a high-hitting pattern checker for VLSI mask data · DAC 1983
Diagnostic system for large scale logic cards and LSI'S · DAC 1981
Electronic design automation › physical design
routing
0.021988
Automatic Layout Procedures for Serial Routing Devices · DAC 1988
A routing procedure for mixed array of custom macros and standard cells · DAC 1985
Electronic design automation
timing-driven design
0.011991
Basic Concepts of Timing-oriented Design Automation for High-performance Mainframe Computers · DAC 1991
Electronic design automation › physical design
placement
0.021986
Efficient placement algorithms optimizing delay for high-speed ECL masterslice LSIs · DAC 1986
Automatic placement algorithms for high packing density V L S I · DAC 1983
Electronic design automation › hardware verification and test
fault simulation
0.011987
RFSIM: Reduced Fault Simulator · IEEE Trans. Comput. Aided Des. Integr. Circuits Syst. 1987
Electronic design automation › physical design › placement › module placement
block placement
0.011984
Combine and top down block placement algorithm for hierarchical logic VLSI layout · DAC 1984
Processor architecture and microarchitecture › general-purpose processor architecture
mainframe processor design
0.011991
Basic Concepts of Timing-oriented Design Automation for High-performance Mainframe Computers · DAC 1991
Electronic design automation › hardware verification and test
fault diagnosis
0.011981
Diagnostic system for large scale logic cards and LSI'S · DAC 1981
Computational geometry › motion planning
path planning
0.011981
An algorithm for searching shortest path by propagating wave fronts in four quadrants · DAC 1981
Graph algorithms and graph theory
shortest path
0.011981
An algorithm for searching shortest path by propagating wave fronts in four quadrants · DAC 1981
Computational geometry
wavefront propagation
0.011981
An algorithm for searching shortest path by propagating wave fronts in four quadrants · DAC 1981
Electronic design automation › hardware verification and test › fault simulation
concurrent fault simulation
0.011987
RFSIM: Reduced Fault Simulator · IEEE Trans. Comput. Aided Des. Integr. Circuits Syst. 1987
Integrated circuit design
VLSI design
0.011986
Principles of design automatioon system for very large scale computer design · DAC 1986
Electronic design automation › physical design › circuit partitioning
logic partitioning
0.011975
A logic partitioning procedure by interchanging clusters · DAC 1975
Electronic design automation
logic synthesis
0.011975
A logic partitioning procedure by interchanging clusters · DAC 1975
Integrated circuit design
digital circuit design
0.011981
Diagnostic system for large scale logic cards and LSI'S · DAC 1981

Methods — techniques the papers use, named apart from their topics

timing-driven placement and routing · 0.0automatic layout · 0.0iterative weighted improvement · 0.0detectable fault only principle · 0.0clustering placement · 0.0candidate gate once principle · 0.0multi-sided pin routing algorithm · 0.0high-hitting pattern checking · 0.0wavefront propagation · 0.0cluster interchange · 0.0
YearPublicationVenuePosition
2003 Roles of funding agencies in technology-driven economic development
abstract
In the past, government agencies played pivotal roles in the development of new technologies. For example, Internet is an outgrowth of the ARPAnet project sponsored by the Defense Advanced Research Projects Agency (DARPA) of the United States government. Recently, consortia of private industries, often in cooperation with government agencies, have entered into this picture. As a consequence, researchers in academia have shifted their attentions much more towards real-world applications. In the panel discussion, we first compare the traditional roles of funding agencies in the USA, EU, and Asia. We then focus on the new trends in this funding business in each of the three regions. We will examine why and how such shifts have been made and discuss the roles of funding agencies to be played in the coming years. In particular, we will attempt to search for future roles and new forms/ways of the funding agencies from the viewpoint of economic development driven by technology advancement.
Kazuo Nakajima, Brian Schott, Tokinori Kozawa, Jose L. Muñoz, Wolfgang Rosenstiel, Sakae Takahashi, Chen-Wen Wu
ASP-DAC3
1997 Collaboration between university and industry
abstract
Summary form only given, as follows. Rapid growth in semiconductor technology has greatly changed the situation of research and development between companies from one of competition to collaboration. With so much cooperation between enterprises, what role, if any, should universities play? What do companies expect of universities? How and what do universities contribute to society ? In this session panelists will introduce the present status of collaboration between universities and industries in their respective countries and give their ideas toward a more effective cooperation system, Is it necessary to promote collaboration between universities and industry? The advantages to both sides in the collaboration between universities and industry will be discussed frankly.
Tokinori Kozawa
ASP-DAC1
1991 Basic Concepts of Timing-oriented Design Automation for High-performance Mainframe Computers
abstract
This paper outlines the concepts and the key technologies for designing high-performance mainframe computers.The goals of the design automation system are:1) reducing the development period, 2) implementing high performance.We perceive that both of the goals must be achieved for the timely development of mairtframe computers that meet the market demand.The latest high-performance mainframe computer, the Hitachi M-880, was successfully designed by utilizing this system, and total capability of the system has been proven.
Hidekazu Terai, Fumio Goto, Katsuro Wakai, Tokinori Kozawa, Mitsugu Edagawa, Satoshi Hososaka, Masahiro Hashimoto
DAC4
1988 Automatic Layout Procedures for Serial Routing Devices
Yasushi Ogawa, Hidekazu Terai, Tokinori Kozawa
DAC3
1987 RFSIM: Reduced Fault Simulator
abstract
This paper describes the algorithm, implementation, and evaluation results of a new fault simulator called RFSIM, which is designed for combinational circuits. In order to accelerate fault simulation, two basic principles are introduced, a Detectable Fault Only (DFO) principle and a Candidate Gate Once (CGO) principle. The DFO principle is a dynamic reduction algorithm, which aims at drastically reducing computational complexity by utilizing blocking gate information. The CGO principle is an implementation technique which is utilized to implement the DFO principle effectively. Experimental results show that RFSIM is more than 10 times faster than a conventional concurrent fault simulator, and confirms that the DFO principle contributes to a drastic reduction in the number of faults to be simulated. A fault reduction ratio of around 25 to 1 was achieved in one of the benchmark circuits.
Takao Nishida, Shunsuke Miyamoto, Tokinori Kozawa, Katsuya Satoh
IEEE Trans. Comput. Aided Des. Integr. Circuits Syst.3
1986 Efficient placement algorithms optimizing delay for high-speed ECL masterslice LSIs
abstract
Placement algorithms optimizing signal delay as well as wirability for high-speed ECL masterslice LSI's are proposed. Equivalent constraints of wire length for clock skew, data path delay, and wired-OR are classified according to upper and lower limits. To maintain such limits, a top-down method utilizing an augmented two-dimensional clustering placement with “scope” and “zone”, which are new concepts representing limits, and an iterative weighted improvement method are presented. Such algorithms are applied to hundreds of 2 K and 5 K gate ECL masterslice LST's for a newly developed high-end mainframe computer, the Hitachi M-680H. Through such algorithms, the physical design is greatly improved by guaranteeing high wirability and improving electrical characteristics.
Yasushi Ogawa, Tatsuki Ishii, Yoichi Shiraishi, Hidekazu Terai, Tokinori Kozawa, Kyoji Yuyama, Kyoji Chiba
DAC5
1986 Principles of design automatioon system for very large scale computer design
Yasuhiro Ohno, Masayuki Miyoshi, Norio Yamada, Toshihiko Odaka, Tokinori Kozawa, Kooichiro Ishihara
DAC5
1985 A routing procedure for mixed array of custom macros and standard cells
abstract
Routing algorithms for multi- (more than 3) sided pin arrangements are presented. These algorithms are essential for layouts mixing standard cells with custom macros such as ROM, RAM, PLA and ALU. An extended layout model in which these algorithms are applied is also presented. An experimental result regarding the effect on block area with respect to cell height, obtained by comparing an extended model with a traditional model, is described.
Hidekazu Terai, Michiyoshi Hayase, Tokinori Kozawa
DAC3
1984 Combine and top down block placement algorithm for hierarchical logic VLSI layout
Tokinori Kozawa, Chihei Miura, Hidekazu Terai
DAC1
1983 Automatic placement algorithms for high packing density V L S I
Tokinori Kozawa, Hidekazu Terai, Tatsuki Ishii, Michiyoshi Hayase, Chihei Miura, Yasushi Ogawa, Kuniaki Kishida, Norio Yamada, Yasuhiro Ohno
DAC1
1983 MACH : a high-hitting pattern checker for VLSI mask data
Akira Tsukizoe, Jun'ya Sakemi, Tokinori Kozawa, Hiroshi Fukuda
DAC3
1981 Diagnostic system for large scale logic cards and LSI'S
Susumu Goshima, Yuichi Oka, Tokinori Kozawa, Teruo Mori, Yoshimitsu Takeguchi, Yasuhiro Ohno
DAC3
1981 An algorithm for searching shortest path by propagating wave fronts in four quadrants
Xiong Ji-Guang, Tokinori Kozawa
DAC2
1981 A concurrent pattern operation algorithm for VLSI mask data
Tokinori Kozawa, Akira Tsukizoe, Jun'ya Sakemi, Chihei Miura, Tatsuki Ishii
DAC1
1975 A logic partitioning procedure by interchanging clusters
Tadakatsu Ishiga, Tokinori Kozawa, Shoji Sato
DAC2